{
  "manageEntity": {
    "action": "Save",
    "entityId": "894043674",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xacc634df224052095704c550b232eca0cc0138327d9c3d81a8bc047fdc38c3cf",
    "signature": "0x3e019954bba7872e68a8ec9f2625a1808facfe608ab680229d1064ea1ae4dbbd69cb9d2bfae2b81cf92feba2d52a46bd0b089ffb13d76e98f9a188f1505e40611b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}